Matlab-to-SPINS grid ordering

Matlab to SPINS grid ordering, for a 2D domain with periodic (or free-slip) conditions in the x-direction and free-slip conditions in the z-direction and a flat bottom boundary. It solves the DJL equation for solitary waves or the Taylor-Goldstein equation for traveling/standing linear waves, interpolates the u, w and rho fields onto a regular (non-Cheb) grid, and then saves the data as SPINS input files (for wave_reader_x).

Components

• driver.m Input parameters and main driver file for matlab2spins2d.m.
• tg.m Taylor-Goldstein equation solver for traveling/standing linear waves.
• get_eta.m Main iteration loop of the DJL solver.
• md_diff.m Differentiation matrix for the DJL solver.
• iswpost.m Post processing for the DJL solver.
• iswpic.m Making plots for the DJL solver.
• find_contour.m Find the contour of Ri=0.25 in the DJL solution.
• contour_data.m Function called by find_contour.m.
• matlab2spins2d.m Interpolation of flow fields from DJL/TG solver onto SPINS grid.
• resize_x.m Spectral interpolation in x-direction.
• resize_z.m Spectral interpolation in z-direction.